EP 3692514 A1 20200812 - NETWORKED ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS WITH SYNCHRONIZED TRACKING
Title (en)
NETWORKED ELECTRONIC ARTICLE SURVEILLANCE SYSTEMS WITH SYNCHRONIZED TRACKING
Title (de)
ÜBERWACHUNGSSYSTEME FÜR VERNETZTE ELEKTRONISCHE ARTIKEL MIT SYNCHRONISIERTER VERFOLGUNG
Title (fr)
SYSTÈMES DE SURVEILLANCE ÉLECTRONIQUE D'ARTICLES EN RÉSEAU AVEC SUIVI SYNCHRONISÉ
Publication
Application
Priority
- US 201715677556 A 20170815
- US 2018000135 W 20180815
Abstract (en)
[origin: US10121362B1] Systems and methods for operating an Electronic Article Surveillance (“EAS”) system. The method comprising: receiving, by an electronic device, a synchronization signal transmitted from a remote Wireless Device Manager (“WDM”); performing first transmit and receive operations at the electronic device that are synchronized in accordance with the remote WDM's AC power line zero crossing specified by the synchronization signal; detecting when the synchronization signal is no longer being received by the electronic device; and performing second transmit and receive operations at the electronic device that are synchronized in accordance with the electronic device's local AC power line zero crossing, when the synchronization signal has not been received by the electronic device for a specified period of time.
IPC 8 full level
G08B 13/24 (2006.01)
CPC (source: EP KR US)
G08B 13/2402 (2013.01 - KR US); G08B 13/2488 (2013.01 - EP US); G08B 29/185 (2013.01 - EP KR US); H04W 56/00 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2019035871A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 10121362 B1 20181106; CN 111684499 A 20200918; EP 3692514 A1 20200812; JP 2020531819 A 20201105; JP 2024008957 A 20240119; KR 20200100593 A 20200826; WO 2019035871 A1 20190221
DOCDB simple family (application)
US 201715677556 A 20170815; CN 201880059992 A 20180815; EP 18785466 A 20180815; JP 2020509486 A 20180815; JP 2023183187 A 20231025; KR 20207007345 A 20180815; US 2018000135 W 20180815